Heat-Shrink & Cold-Shrink Sleeves

Heat Shrink
Heat shrink tubing is a type of extruded plastic tube that reduces in size when heated to a pre-determined shrink ratio to fit a specific application. A sleeve should be selected in a size larger than required to cover both the wire and components it is to be used with, before being shrunk to fit. Once fitted, the sleeve provides long lasting durability.

Materials and Types
Heat shrink is available in various different materials, colours, sizes and shrink ratios to suit the application required. Some are available with an adhesive lining that helps to bond the tubing with the cables and components.
Polyolefin is the most common material as it is highly durable and can withstand high temperatures without a restricted shelf life. They are also manufactured from PVC, fluoropolymer, neoprene and elastomeric materials. The material is often cross linked to assist with the tubing shrinking back to its original dimensions.
The pre-determined shrink ratio, for example, 2:1 or 3:1, is the measurement of how small the sleeve goes in comparison to its expanded size. When the number is higher in the shrink ratio the greater the shrinkage. It allows a precise, secure fit that does not come off easily.
Applications
Heat shrink tubing is versatile and easy to use therefore it can be applied in an assortment of applications, the most common uses being:
• Electrical insulation – covering joints and repairs
• Strain relief – relieving pressure from the cable
• Wire bundling – in harness building and cable organisation
• Environmental and mechanical protection – preventing damage from abrasion, moisture, dust and chemicals
• Identification – the wide range of colours the tubing is manufactured in allows it to be used for colour coding and component ID
Installation
When selecting the right size tubing, you should consider the maximum and minimum diameter of what you are covering. Use this information to check against the recovered diameter (the diameter after shrinking) and expanded diameter (the pre-shrinkage diameter) of the sleeve.

You can cut most tubing to a suitable length using standard scissors. The unshrunk tubing can be slid over the area or objects it is to cover. Then with a hand held heat gun or heat shrink oven, the sleeve is shrunk tightly. To prevent uneven shrinkage or overheating, check the recommended heating temperature beforehand.

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Description Price Sleeve Diameter Shrunk Diameter Colour Sleeve Type Adhesive Lined Shrink Ratio Sleeve Length Material Flame Retardant Halogen Free Series Standards Met
RS庫存編號 170-6614
製造零件編號RNF-100-3/16-X-STK
TWD91.00
單位
4.8mm 2.4mm Clear Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS庫存編號 157-3852
製造零件編號DWTC-8/2-X-STK
TWD443.00
單位
8mm 2mm Clear Heat Shrink Yes 4:1 1.2 m Polyolefin No No DWTC -
RS庫存編號 342-7329
製造零件編號CRN-1/4-0-STK
TWD546.00
單位
6.4mm 3.2mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes No CRN -
RS庫存編號 157-3795
製造零件編號CGAT-6/2-0
TWD210.00
單位
6mm 2mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS庫存編號 170-6507
製造零件編號RNF-100-1/4-9-STK
TWD120.00
單位
6.4mm 3.2mm White Heat Shrink No 2:1 1.2 m Polyolefin Yes No RNF-100 -
RS庫存編號 397-821
製造零件編號SCL-1/4-0
TWD143.60
/個 (每包:5個)
單位
6.4mm 2mm Black Heat Shrink No 3:1 300 mm Polyolefin No No SCL -
RS庫存編號 157-3824
製造零件編號CGAT-18/6-0
TWD422.00
單位
18mm 6mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS庫存編號 288-5263
製造零件編號RT-375-1-X-STK
TWD575.00
單位
25.4mm 12.7mm Clear Heat Shrink No 2:1 1.2 m Fluoropolymer Yes No RT-375 -
RS庫存編號 288-5207
製造零件編號RT-375-3/16-X-STK
TWD196.00
單位
4.8mm 2.4mm Clear Heat Shrink No 2:1 1.2 m Fluoropolymer Yes No RT-375 -
RS庫存編號 433-0579
製造零件編號ATUM-12/3-2-STK
TWD577.00
單位
12mm 3mm Red Heat Shrink Yes 4:1 1.2 m Polyolefin Yes No ATUM -
RS庫存編號 170-6311
製造零件編號TFER-1/2-X
TWD1,231.00
單位
12.7mm 3.7mm Clear Heat Shrink No 3.2:1 1.2 m Teflon Fluoropolymer Yes No TFER ASTM D 876-00, ASTM D2671, Class 5, Def. Stan. 59-97 Type 5B, IEC 60243, Military AMS-DTL-23053/12 Class 3, Raychem RW-2054
RS庫存編號 306-4417
製造零件編號ZH-100-1/2-0
TWD200.00
單位
12.7mm 6.4mm Black Heat Shrink No 2:1 1.2 m Polyolefin Yes Yes ZH-100 -
RS庫存編號 433-0765
製造零件編號RW-175-1/2-0-RSU-STK
TWD500.00
單位
12.7mm 6.4mm Black Heat Shrink No 2:1 1.2 m PVDF Yes No RW-175 -
RS庫存編號 277-7926
製造零件編號RW-175-3/16-X
TWD244.00
單位
4.8mm 2.4mm Clear Heat Shrink No 2:1 1.2 m PVDF Yes No KYNAR -
RS庫存編號 433-0771
製造零件編號RW-175-3/4-0-RSU-STK
TWD983.00
單位
19.1mm 9.5mm Black Heat Shrink No 2:1 1.2 m PVDF Yes No RW-175 -
RS庫存編號 177-9246
製造零件編號RNF 3000-3/1-X-2
TWD136.00
單位
3mm 1mm Clear Heat Shrink No 3:1 1.2 m Polyolefin No No RNF-3000 UL
RS庫存編號 316-1647
製造零件編號ATUM-12/3-0
TWD493.00
單位
12mm 3mm Black Heat Shrink Yes 4:1 1.2 m Polyolefin Yes No ATUM -
RS庫存編號 874-0973
製造零件編號RBK-ILS-125-NR2-0-50MM
TWD7.00
/個 (每包:100個)
單位
7.5mm 1.65mm Black Heat Shrink Yes 4:1 50 mm Polyolefin Yes Yes RBK-ILS-125 ELV, RoHS Compliant
RS庫存編號 157-3789
製造零件編號CGAT-3/1-0-RS-157-3789
TWD206.00
單位
3mm 1mm Black Heat Shrink Yes 3:1 1.2 m Polyolefin Yes No CGAT E85381
RS庫存編號 170-6440
製造零件編號RNF-100-1-0-STK
TWD247.00
單位
25.4mm 12.7mm Black Heat Shrink No 2:1 1.2 m Polyolefin No No RNF-100 -